Reality in our minds is the result of a cognitive process, and when people talk about objective facts, they are only talking about the commonly accepted. The reality out there is so deep in its nature that we can dive for a lifetime in a minute particle of matter and still not now it in all its extension and complexity.
Knowledge in this respect is the road that we have covered in the process of discovering reality.
Wisdom is the result of travelling this road and accepting that the road never ends. The wiser discover this sooner, the foolish never realize.
Most of us come to grips with this "reality" as we age.